Patent GB-191503464-A (GB)
Title: Improvements in Automatic Weft Replenishing Looms.
Inventor: HOLLINGWORTH EDWARD
IPC: D03D45/34
Filed: 1915-03-04
Abstract: 3464. Hollingworth, E., [Crompton & Knowles Loom Works]. March 4. Shuttle-changing mechanism; swells. - A spare-shuttle holder 23, Fig. 1, carried by a lever 22 is normally held beneath a magazine 4 on the breast beam and is locked in position by means of a pawl 35 on the lever 22 engaging a slot in a locking-lever 34. Upon the indication of weft-failure, the shuttle box 25 is raised by a lever 29, the locking-lever 34 is turned, and the lever 22 is raised, thus moving its pawl 35 along the slot of the locking-lever and between guides 72, 72<2> on the rearward movement of the lay, so that the spare-shuttle holder takes the place of the shuttle box. When the lever 22 is moved to. bring the shuttle holder into operative position, it allows a spring-actuated lever 21 to operate fingers 13, 17 in the magazine, the fingers 13 being moved from beneath the next shuttle, which falls on to the levers 17, which have been moved inwards. When the lever 22 returns after weft-replenishment, the fingers 13, 17 are again operated to allow a fresh shuttle to fall on to the shuttle holder 23. Upon the rearward motion of the lay during shuttle-changing, a platform 81 is lowered and receives the exhausted shuttle, which is ejected from the back of the raised shuttle box by its own momentum. When the platform is subsequently raised, the shuttle falls down an inclined receptacle 83. Upon substantial exhaustion of the weft, the feeler causes an arm 54 to be rocked and to draw a rod 53 connected by a spring 52 to an arm of a latch 50 on a lever 47. The latch enters a slot in a lever 44, Fig. 9, so that the levers 44, 47 are locked together. The lever 44, rocked by a cam 43 carried by the main driving-shaft, causes the lever 47 to move a sleeve 61 loose on a shaft 56. The sleeve 61 carries a mutilated gear-wheel 59 having projections 59<1> adapted to engage holes in a cam-disk 58 keyed on a sleeve 57 carrying a crank 66<2>. When the sleeve 61 is moved, the mutilated gear 59 is moved into. mesh with a mutilated gear 41 carried by the main shaft, a locking-cam 60 fast on the wheel 59 passing through a slot 41<a> in the gear 41. Upon rotation of the gear 59, the cam-disk 58 and the crank 66<2> are operated. The cam-disk 58 operates a lever 64, Fig. 1, connected by a lever 65 to the locking-lever 34, to unlock it from the bowl 35. The crank 66<2> operates a connecting- rod 67 to rock a give-way lever 68 to raise a lever 71 connected to the lever 22 carrying the shuttle holder 23 and the lever 29 controlling the shuttle box 25, and it also operates a give-way lever 77 connected by a lever 80 to lower the receiving- platform 81 for the spent shuttle. Upon the further rotation of the mutilated gear 59, the various parts of the mechanism-are restored to their normal positions. When the shuttle box is raised, as shown in Fig. 12, and the shuttle, holder 23 is placed in operative position, the protector finger 88, normally in engagement with the swell 25<1>, is tilted about a pivot on the protector rod 84 by a projection 90<1> carried by the lever 29 engaging a projection 88<1> on the finger, thus allowing the filling-thread from the new shuttle to pass freely over the finger 88.